1) forged boring bar
[机]锻钢钻杆
2) forged steel rod
锻钢拉杆
3) drill pipe steel
钻杆钢
1.
Process optimization on horizontal casting for 150mm round billet of drill pipe steels;
水平连铸ф150mm钻杆钢工艺优化
2.
The Ф150mm drill pipe steel was produced by horizontal continuous casting process,although the production was smooth,the casting billets have serious ovality.
采用水平连铸工艺生产ф150mm规格钻杆钢时,结晶器锥度前段铜套按2。
4) S135 drill pipe
S135钻杆钢
1.
The S135 drill pipe steel was selected as the research object in the paper;the oxygen corrosion and corrosion fatigue be.
本文选用S135钻杆钢作为研究对象,进行钻杆钢的氧腐蚀和腐蚀疲劳行为研究。
5) upsetting machine
杆端锻粗机
6) hollow drill stee
空心钻杆钢
补充资料：北满特殊钢股份有限公司30000kN快锻机锻压合金钢锭
北满特殊钢股份有限公司30000kN快锻机锻压合金钢锭
滋馨翔布困口...300撇瓢熬
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条